Optimization and Adsorption Behavior of Nanostructured NiFe2O4/Poly AMPS Grafted Biopolymer

Synthesis and investigation of green hydrogels for simultaneous removal of mercuric cations and methylene blue from aqueous solutions

“…This assumed that the 1st-order pseudo models can not be used for explaining adsorption behavior, and no physical interaction was possible on the adsorbent surface between Hg +2 and MB ions and the functional groups of the polymer chains constituting the network structure. On the other hand, the improved correlation coefficients, R 2 (ranges between 0.9834 -0.9983 for Hg +2 and from 0.9812 to 0.9943 for MB) suggested that the adsorption of both species on the green networks followed a kinetic model with a pseudo-2nd-order via chemical interaction between Hg +2 and MB and the functionalities of the adsorbate surface through the mutual or electron exchange or formation of chelate structure between sorbing and sorbed species [17,19,29]. The relationships depict also that the rate of diffusion increases by time and the effectiveness of the prepared hydrogels towards Hg +2 is more predominant than towards MB which may be due to the stability of the chelate structure between Hg +2 and the abundant functional groups found in the green polymers [50].…”

“…on of natural polymers with inorganic materials with monometallic core (Fe3O4) or bimetallic core MFe2O4 (M = Co, Zn, Mn, Ni) was proved to enhance the mechanical properties and physical characteristics [19]. On the other hand, guar gum and chitosan are among the most abundant natural polymers [20].…”

Waste Cleaning Waste: Combining Alginate with Biowaste‐Derived Substances in Hydrogels and Films for Water Cleanup

“…Among adsorbents, one of the oldest and most commonly used materials is activated carbon, [8] but mineral‐based compounds, such as silica gels, activated alumina, zeolites, and clay minerals, have also been widely studied [9] . Even more complex efforts have been made to develop innovative and effective adsorbing materials, often resorting to elaborate synthetic routes and/or unsustainable reactants, which makes scaling up of the processes unfavorable [10–16] . From this perspective, simplicity of the preparation of materials and the use of biobased recovered chemicals are aspects that should prevail over the pursuit of elaborated, complex, even if very active, materials.…”

Ternary Photodegradable Nanocomposite (BiOBr/ZnO/WO3) for the Degradation of Phenol Pollutants: Optimization and Experimental Design

“…RSM is a viable procedure for optimizing responses that are modeled by process parameters. 20 To our knowledge, no previous research has focused on the fabrication of a BiOBr/WO 3 /ZnO p–n heterojunction and its phenol degradation performance. We present a simple and cost-effective solvothermal synthesis technique for fabricating a unique hybrid BiOBr/WO 3 /ZnO p–n heterojunction.…”

“…The variables of a process can be developed, improved, and optimized by the response surface methodology (RSM), which is an assimilation of theoretical and numerical tools used for assessing the significance of deferential process factors in the presence of different correlations. RSM is a viable procedure for optimizing responses that are modeled by process parameters . To our knowledge, no previous research has focused on the fabrication of a BiOBr/WO 3 /ZnO p–n heterojunction and its phenol degradation performance.…”